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1831 Illinois County Formation Map


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1829-1831--NINE NEW COUNTIES

As counties of the State of Illinois


1831 Illinois county formation map


1829-1831--NINE NEW COUNTIES

MACOUPIN. Jan. 17, 1829--East from the southwest corner of town seven north, nine west, to the southwest corner of Montgomery; thence north to the south line of Sangamon; thence west to the line between ranges nine and ten west; thence south to the beginning.

[Laws 1829, p. 26.]

MACON. Jan. 19, 1829--North on the third principal meridian from the southwest corner of section eighteen, town fourteen north, one east, to the line between towns twenty and twenty-one north; thence east to the line dividing ranges six and seven east; thence south to the southeast corner of section thirteen, town fourteen north, six east; thence west to the beginning.

[Laws 1829, p. 28.]

COLES, Dec. 25, 1830--West from the northeast corner of section 4, town 16 north, 14 west, of second principal meridian to the line between ranges 6 and 7 east of the third principal meridian; thence south to the southeast corner of town 9 north, 6 east, thence east to the southeast corner of section 31 (the east line of fractional range 11 east); thence north to the northeast corner of section 19, town 12 north, 11 east of the third principal meridian; thence east to the northeast corner of section 21, town 12 north, 14 west of the second principal meridian; thence north on the section lines through the middle of range 14 west to the beginning.

[Laws 1831, p. 59.]

McLEAN. Dec. 25, 1830--North from the southwest corner of town twenty-one north, one west, of the third principal meridian to the line dividing towns twenty-eight and twenty-nine north; thence east to the line dividing ranges six and seven east; thence south to the southeast corner of town twenty-one north, six east; thence west to the beginning.

[Laws 1831, p. 57.]

COOK. Jan. 15, 1831--West from the Indiana state line on the line dividing towns thirty-three and thirty-four north to the line dividing ranges eight and nine east of the third principal meridian; thence north to the Wisconsin state line; thence east to the northeast corner of the State; thence southwardly along the state line to the beginning.

[Laws 1831, p. 54.]

LASALLE. Jan. 15, 1831--South from the southwest corner of Cook thirty miles; thence west to the third principal meridian; thence north forty-eight miles; thence east to Cook; thence south to the beginning.

[Laws 1831, p. 54.]

PUTNAM. (re-defined). Jan. 15, 1831--East from the southwest corner of town 12 north, 6 east to the Illinois; thence down the river to the south line of town 29 north; thence east to the third principal meridian; thence north 22 miles; thence west to the northwest corner of town 18 north, 6 east of the fourth principal meridian; thence south to the beginning.

[Laws 1831, p. 54.]

ROCK ISLAND. Feb. 9, 1831--East from middle of the main channel of the Mississippi with the north line of town fifteen north to the fourth principal meridian; thence north to Rock River; thence up the middle of the main channel to its confluence with Marais d'ogee slough; thence with the middle of said slough to the Mississippi; thence down the middle of the main channel of the river to the beginning.

[Laws 1831, p. 52.]

Effingham, Feb. 15, 1831--South from the northwest corner of Jasper to the line between towns 5 and 6 north; thence west to the line between ranges 3 and 4 east of the third principal meridian; thence north to the northeast corner of section 24, town 9 north; 6 east; thence south to the southeast corner of town 9 north, 6 east; thence east to the line between ranges 7 and 8 east; thence south to the beginning.

[Laws 1831, p. 51.]

JASPER. Feb. 15, 1831--North west section lines from the southeast corner of section 22, town 5 north, 14 west of the second principal meridian to the northeast corner of section 3 town 8 north, 14 west; thence west to the northwest corner of section 6, town 8 north, 8 east of third principal meridian; thence south to the southwest corner of section 19, town 5 north, 8 east; thence east to the beginning.

[Laws 1831, p. 51.]

MONROE. Jan. 20--Southern boundary re-adjusted.

[Laws 1829, p. 31.]


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